CN105197194B - A kind of flexible drift island device for reservoir drawdown band - Google Patents
A kind of flexible drift island device for reservoir drawdown band Download PDFInfo
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- CN105197194B CN105197194B CN201510683731.5A CN201510683731A CN105197194B CN 105197194 B CN105197194 B CN 105197194B CN 201510683731 A CN201510683731 A CN 201510683731A CN 105197194 B CN105197194 B CN 105197194B
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- island
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- drift
- floating box
- reservoir
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Abstract
The present invention relates to water conservancy and hydropower technical field, more particularly to a kind of flexible drift island device for reservoir drawdown band, including：The floating box device for being used to float on the falling zone water surface of multiple flexible connections, the floating box device carry the ground surface soil for cultivation.Not only it is adapted to water level in falling zone and the various situations of luffing often occurs, and the utilization rate in the soil of falling zone can be greatly improved, is no longer influenceed by the overboard position that disappears, meanwhile, greatly reduce regression zone land and use the pollution for reservoir area water quality.
Description
Technical field
The present invention relates to water conservancy and hydropower technical field, more particularly to a kind of flexible drift island for reservoir drawdown band to fill
Put.
Background technology
Falling zone refers to river, the water level in lake disappears rise formed in river course rise during maximum water level and overboard phase
Between falling zone domain between lowest water level line, be that a kind of special seasonal land and water interlocks wetlands ecosystems.Water conservancy and hydropower work
Journey falling zone refers to that Hydraulic and Hydro-Power Engineering needs to adjust water level and disappeared the highest that rises and formed in reservoir and river course because controlling flood and generating electricity
Falling zone domain between waterline and lowest water level line.Reservoir drawdown band formed between reservoir area water body and land bank one it is huge
Huan Ku ecological green belts.Reservoir drawdown band is a kind of special ecological environment under artificial disturbance, repeatedly periodically it is exposed and
Immersion and fluctuation in stage, it can make landform, soil and the water regime of falling zone that a series of change occur.Hydroelectric station operation mistake
Large area soil caused by reservoir drawdown band meeting can not utilize in journey, and the reservoir area masses plant regression zone land in quickly and accelerated to reservoir edge
The soil stripping of bank, causes a large amount of soil erosions and reservoir sediment accumulation, substantial amounts of residues of pesticides and substantial amounts of farming in soil
Thing stalk floating object can also cause environmental pollution, need a kind of falling zone Treatment process badly to solve the above problems.
The content of the invention
It is an object of the invention to provide a kind of flexible drift island device for reservoir drawdown band, to solve above-mentioned ask
Topic.
To achieve the above object, the invention provides a kind of flexible drift island device for reservoir drawdown band, including：It is more
The floating box device for being used to float on the falling zone water surface of individual flexible connection, the floating box device carry the ground surface soil for cultivation.
Further, the floating box device includes being used for the buoyancy tank for carrying ground surface soil, and the buoyancy tank, which is contained in, to be increased in buoyancy tank, the buoyancy tank
The connection member for being flexibly connected floating box device is connected with top margin.
Further, the increasing buoyancy tank bottom is provided with the U-shaped slip-proofing device made of rigid plastics.
Further, the connection member includes the wooden cross members in intersecting parallels connection, and the both ends of the wooden cross members connect respectively
There are circular ring type connector and hook type coupling parts, the flexibility that the circular ring type connector and hook type coupling parts are used between multiple floating box devices
Connection.
Further, the bottom surface of the wooden cross members, which is provided with, increases kickboard.
Further, the flexible drift island device also includes fixing anchor cable located at the floating island of storehouse bank.
Further, the floating island fixes the maximum anchorage length and depth of anchor cable, the most strong wind being likely to occur according to reservoir
Wave checking computations, calculating maximum wind power and water level, which quickly disappear, falls issuable maximum pull determination under collective effect.
Further, the floating box device maximum can carry ground surface soil weight and at most can farming simultaneously number according to
The material composition and volume of the floating box device carry out buoyancy calculations determination.
Compared with prior art, the beneficial effects of the invention are as follows：Water level in falling zone is not only adapted to often to become
The various situations of width, and the utilization rate in the soil of falling zone can be greatly improved, no longer influenceed by the overboard position that disappears, meanwhile,
Greatly reduce regression zone land and use the pollution for reservoir area water quality.
Brief description of the drawings
Fig. 1 is a kind of top view of flexible drift island device for reservoir drawdown band of the invention；
Fig. 2 is a kind of structural representation of flexible drift island device floating box device for reservoir drawdown band of the invention；
Fig. 3 is Fig. 2 A-A sectional views；
Fig. 4 is Fig. 2 B-B sectional views；
Fig. 5 is that a kind of disappearing for flexible drift island device floating box device for reservoir drawdown band of the invention falls preceding work signal
Figure；
Fig. 6 is a kind of backward work signal that disappears of flexible drift island device floating box device for reservoir drawdown band of the invention
Figure.
Embodiment
The present invention is described in detail for shown each embodiment below in conjunction with the accompanying drawings, but it should explanation, these
Embodiment is not limitation of the present invention, those of ordinary skill in the art according to these embodiment institute work energy, method,
Or equivalent transformation or replacement in structure, belong within protection scope of the present invention.
Join shown in Fig. 1 to Fig. 6, present embodiments provide a kind of flexible drift island device for reservoir drawdown band, including：
The floating box device 1 for being used to float on the falling zone water surface of multiple flexible connections, the floating box device 1 carry the earth's surface for cultivation
Soil.
The key that falling zone is administered is exactly in the case where significantly water rises, and still can maximumlly be utilized limited
Land resource, emigration`s income is improved, the present embodiment is by flexible floatation island, by soil floating in flakes on the water, when on water level
When rising, whole floating island floats on the water surface, referring to Fig. 5.When water level, which disappears, to fall, water level that floating island can fall according to actually disappearing by
Section sinking is deposited in bank slope surface, referring to Fig. 6.Planning has path to realize several personal operations simultaneously on floating island, while by
Do not disappeared to fall to be influenceed by water level in floating island, can farming throughout the year, ensured the utilization rate in soil.Meanwhile substantially reduce
Regression zone land uses the pollution for reservoir area water quality.And floating island is as superaqual landscape, elegant in appearance, can turn into water
The rare water tourism landscape in storehouse settlement, to promoting relocation of people from reservoir areas Regional Economic Development to have very important significance.
In the present embodiment, the floating box device 1 includes being used for the buoyancy tank 11 for carrying ground surface soil, and it is floating that the buoyancy tank 11 is contained in increasing
In case 12, the connection member for being flexibly connected floating box device 1 is connected with the top margin of buoyancy tank 11.
In the present embodiment, the bottom of increasing buoyancy tank 12 is provided with the U-shaped slip-proofing device 13 made of rigid plastics, for buoyancy tank
When table is broken on the sedimentation of device 1 slope, increase increases the frictional force of the bottom of buoyancy tank 12.
In the present embodiment, the connection member include in intersecting parallels connection wooden cross members 14, the two of the wooden cross members 14
End is connected to circular ring type connector 15 and hook type coupling parts 16, and the circular ring type connector 15 and hook type coupling parts 16 are for more
Flexible connection between individual floating box device 1.Interconnection technique be ensure floating island play flexible characteristic, and can adapt to water level disappear fall and
The key of the different topographic characteristics of bank slope, in the technical program, the connection between floating island part can be filled with other hinge technologies
Freedom of movement between code insurance barrier floating island ditch part.
In the present embodiment, the bottom surface of the wooden cross members 14, which is provided with, increases kickboard 17.
In the present embodiment, the flexible drift island device also includes fixing anchor cable located at the floating island of storehouse bank.
In the present embodiment, the floating island fixes the maximum anchorage length and depth of anchor cable, is likely to occur according to reservoir
Maximum stormy waves checking computations, calculating maximum wind power and water level, which quickly disappear, falls issuable maximum pull determination under collective effect.
In the present embodiment, wind wave height computational methods use Xi Xiaofu calculation formula：
H=0.015d0.34VF0.33；
L=0.104d0.57VF0.33；
D is the depth of water in formula, in meters；H, L is wave height and wavelength, in meters；V is wind speed, in terms of meter per second；F is the wind head of district
Degree, in the formula for have dimensional quantity in terms of kilometer.The formula is usually used in shallow water in the past, does not consider the general of cumulative percentage when calculating unrestrained high
Read, be pure empirical equation.1 kilometer of false wind area scope, 30 meters of the depth of water, during wind speed 10.8-13.8 meter per seconds, can substantially it try to achieve
The high H of wave is about 0.6 meter.
Floating island pulling force calculate by fully developed sea it is integrally descending when maximal rate, caused maximum pull.Acceleration distance
By fully developed sea to most bottom waterline, the extreme case of consideration stormy waves and reservoir level prompt drop.Use v2=2gh and Ft=Mv (v in formula
For the speed of floating island any point on wave, g is acceleration of gravity, and h is that floating island relative to trough or disappears on wave
Fall the height with lowest elevation.F be floating island with wave it is descending caused by pulling force, t is time of the pulling force effect on floating island,
M be floating island quality) can calculate floating island from top of the waves come downwards to falling zone lowest elevation when issuable maximum pull,
Calculating operating mode considers stormy waves and drops quickly to the extreme case of minimum point with reservoir level.Assuming that floating island is by 10 buoyancy tank lists
Member composition, 1.2 meters of Bottom Runby, 1 second anchor cable tensile impact action time, so as in the hope of floating island maximum pull be
500kN, the anchor pole of 10 tons of pulling force can be used to fix.
Anchor rod anchored technique can use internal enlarged footing chambering process, and rock-bolt length regards design anchor pulling force and scene is actual
Depending on geological condition.
In the present embodiment, the maximum of floating box device 1 can carry ground surface soil weight and at most can farming simultaneously
Number carries out buoyancy calculations determination according to the material composition and volume of the floating box device 1.
The involved basic calculating index of the present embodiment buoyancy checking computations is as follows：
The density of water：1000kg/m3, buoyancy tank density：Density：0.95g/cm3=950kg/m3(natural rubber), gravity add
Speed：9.8m/s2, density of wood 0.58g/cm3=580kg/m3(considering by the common Eucalyptus in south), soil density：1.4g/
cm3=1400kg/m3。
Buoyancy calculations are according to Archimedes' principle, it is possible to provide buoyancy：F=ρ vg.
The buoyancy that each buoyancy tank of preresearch estimates can provide in addition to deadweight：63.576kN.
Accordingly, it is considered to the up people's plantation of floating island and arrange, it is assumed that the average weight of a peasant is 75kg, and weight is
0.75kN, one, which saves buoyancy tank, can both meet at least more than the people of needs 10 to carry out farming above, and floating force safety coefficient is higher, can
To ensure the security of work on the spot.
In the present embodiment, the flexible floatation island device is assembled according to following step sequence.
1) floating element produced according to floating island basic module structure chart, as shown in Figures 2 to 4.The size of buoyancy tank 11 can be with
Made according to actual conditions.The sealing of buoyancy tank 11 is detected in the factory, ensures production quality.Wherein circular ring type
Connector 15 and hook type coupling parts 16 are irony, a diameter of 20~30cm, are overlapped for joint connection in site part, and scene overlap joint should when operating
Ensure the space operation free degree between connector.Tie up the U-shaped slip-proofing device 13 in buoyancy tank bottom.
2) according to live falling zone actual landform, floating island physical planning layout design scheme is proposed, for floating island most
Big operative radius, most farming numbers, it can be checked according to buoyancy and be designed planning.For there is the region of large vessel process,
Influence of the floating island width for water surface area and navigation channel is considered as in conceptual design.
3) it is domatic to clear up falling zone slope.Individual other rock is raised, is cleared up after being smashed with hand air drill into smooth domatic；Greatly
Partial rubble accumulation body will also be cleaned out, make it is whole it is domatic turn into one it is coherent smooth domatic.From good earth's surface
Soil, treat to load buoyancy tank 11 after the completion of floating island connection.
4) anchor cable is fixed in storehouse bank construction floating island according to the spacing of floating box device 1, specific anchor cable pulling force passes through anchor force
Calculate and obtain.It will be connected between first segment floating island connection ring and anchor cable with steel cable, ensure the fastness of connection.
5) floating box device 1 is overlapped section by section, according to actual landform and place integrated planning design drawing, the flexibility at the scene of carrying out
Floating island connects work.
6) swimming in long-term work often to be checked, will for the position for occurring being deteriorated by storehouse aqueous corrosion character condition
It is adjusted replacing in time.
Those listed above is a series of to be described in detail only for feasibility embodiment of the invention specifically
Bright, they simultaneously are not used to limit the scope of the invention, all equivalent implementations made without departing from skill spirit of the present invention
Or change should be included in the scope of the protection.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
Claims (3)
- A kind of 1. flexible drift island device for reservoir drawdown band, it is characterised in that including：Multiple flexible connections are used to float Float on the floating box device of the falling zone water surface, the floating box device carries the ground surface soil for cultivation；The floating box device includes For carrying the buoyancy tank of ground surface soil, the buoyancy tank, which is contained in, to be increased in buoyancy tank, is connected with the buoyancy tank top margin for being flexibly connected The connection member of floating box device；The increasing buoyancy tank bottom is provided with the U-shaped slip-proofing device made of rigid plastics；The connection member Including the wooden cross members connected in intersecting parallels, the both ends of the wooden cross members are connected to circular ring type connector and hook connection Part, the flexible connection that the circular ring type connector and hook type coupling parts are used between multiple floating box devices；The bottom of the wooden cross members Face, which is provided with, increases kickboard；The flexible drift island device for reservoir drawdown band also includes fixing anchor located at the drift island of storehouse bank Rope.
- A kind of 2. flexible drift island device for reservoir drawdown band according to claim 1, it is characterised in that the drift Maximum anchorage length and depth that anchor cable is fixed on island are flowed, the maximum stormy waves being likely to occur according to reservoir checks, and calculates maximum wind power Quickly disappear with water level and fall issuable maximum pull determination under collective effect.
- 3. a kind of flexible drift island device for reservoir drawdown band according to claim 1, it is characterised in that described floating Ground surface soil weight that case apparatus maximum can carry and at most can farming simultaneously number according to the material of the floating box device Composition and volume carry out buoyancy calculations determination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510683731.5A CN105197194B (en) | 2015-10-20 | 2015-10-20 | A kind of flexible drift island device for reservoir drawdown band |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510683731.5A CN105197194B (en) | 2015-10-20 | 2015-10-20 | A kind of flexible drift island device for reservoir drawdown band |
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| CN105197194A CN105197194A (en) | 2015-12-30 |
| CN105197194B true CN105197194B (en) | 2017-12-05 |
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| CN105557279B (en) * | 2016-01-12 | 2018-08-28 | 中国科学院东北地理与农业生态研究所 | A kind of floating blanket Marsh Wetland construction device |
| CN105815139B (en) * | 2016-05-25 | 2018-09-21 | 金陵科技学院 | A kind of multi-functional potting fish jar |
| CN111802156A (en) * | 2020-07-14 | 2020-10-23 | 中国水利水电科学研究院 | Method for restoring hydro-fluctuation belt by utilizing ecological mulberry |
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